I posted the section pages and my YourMathGal YouTube videos to go along with each section of the open source book titled Elementary and Intermediate Algebra by Tyler Wallace that I use for my Math 30 and Math 64 classes at https://sites.google.com/site/harlandclass/home/momlinks
Videos corresponding to sections in the Blitzer textbook used in most on-campus sections of Elementary Algebra and Intermediate Algebra at MiraCosta
Alternative Arithmetic Methods (I think these are easier ways to add, multiply, etc.)
Fun Math Videos
Scratch Addition: Quick and easy way to add a column of single digit numbers using the Scratch or Dot Method. http://youtu.be/aobn006_rl0
Multiply by 9 the easy way: multiply single digits by 9, and larger numbers when all the digits are the same, like 88888 x 9http://www.youtube.com/watch?v=VFHDn4TKHDM
Numerals: About Hindu-Arabic numerals and/or the Indian numerals. I do not know the exact origins.